You can automatically configure the proxy server settings on a client computer by updating the client computer registry. To do this, create a registry file that contains the registry settings you want to update, and then distribute it to the client computer by using a batch file or logon script.
Proxy auto-configuration (PAC) files — PyPAC 0.13.0 A proxy auto-config (PAC) file is a text file that defines a JavaScript function: FindProxyForURL(url, host). For every URL accessed by a client, the function is executed in order to determine the proxy server (if any) to use for that URL. The PAC specification was created by Netscape in 1996. The specification defines a set of JavaScript How to use WPAD (Web Proxy Auto-Discovery Protocol) – Endian A Proxy Auto-Configuration (PAC) file is used by WEB browser to understand if the requests go directly to the destination (request go out without pass through a proxy) or are forwarded to a proxy server (request go out through a proxy). Browsers search for PAC file in different ways (DHCP or DNS) but DNS method should be the one widely supported. Proxy Auto-Configuration URL - ProxyMesh Knowledge Base Oct 17, 2018
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PAC : Proxy Auto Configuration. Proxy Auto Configuration is based on a javascript function that takes the requested URL by the browser, processes it, and returns instructions to the browser on where to get the requested web page (or any other file) : directly from the web server in question, or through a given proxy.
Discovery Without an Auto-Config File - Win32 apps It is possible that there is no proxy auto-configuration file because the client has a direct Internet connection, such as through an ISP, and does not need a proxy server. A proxy server may be required, on the other hand, but the local network may not support WPAD. Malicious proxy Auto-Configs - FIRST + Proxy auto-config files are obfuscated + TOR client installed + TOR communication detected + Access to TOR proxy gates + Task Scheduler actions 38. Summary. Summary + Effective social engineering tactics used to trick banking customers + No “Enable content” or “Enable macros How to configure client proxy server settings by using a You can automatically configure the proxy server settings on a client computer by updating the client computer registry. To do this, create a registry file that contains the registry settings you want to update, and then distribute it to the client computer by using a batch file or logon script. Connector Administrator Guide, Release 3.X - Proxy Auto